开发建设项目土壤流失预测方法研究——以新疆干旱半干旱区为例

Research of soil erosion prediction methods of development and construction projects:Taking an arid and semi-arid area in Xinjiang as an example

新疆地处干旱半干旱区,水土流失类型多、面积广,土壤流失预测是新疆地区水土流失问题研究中非常重要的内容之一,常用的土壤流失预测方法有通用土壤流失方程法、加速侵蚀系数和流失系数法、类比法等。通过分析近年来新疆开发建设项目中常用土壤流失预测方法的优缺点,认为类比法误差小,是目前最适合于新疆干旱半干旱区的土壤土流失预测的方法,预测结果也能很好地满足水土保持方案中土壤流失预测的需求。

Xinjiang is located in arid and semi-arid area,which has large soil erosion area with varied types. Soil erosion prediction is an important issue in the research of soil and water loss. There are lots of methods in it,commonly used as the universal soil loss equation method,accelerated erosion coefficient and loss coefficient method,and analogy method. By analyzing the advantages and disadvantages of prediction methods in development and construction projects in Xinjiang in recent years,analogy method is considered the most suitable method due to its smaller analogy error,the prediction results can also be well positioned to meet soil erosion and soil conservation program in projected demand.